The meaning of the Acronym S is...

S is

• Secret
• Support
• Sir
• Shoot
• Scenario
• Submersible
• Spineless

More Meanings For S:

• Sulfur
• Saturating
• Sound
• Siemans (inverse of Ohms - unit of admittance)
• Switch
• Source
• Side
• Sin
• Sum
• Supercardiod
• Sunshine
• Snow
• Squarely
• Short
• Superior

S is also in:

• Chemistry
• Electronics
• Mathematics
• Meteorology
• Physics
• Universities